MRI: Acquisition of a Multi-Sensor Core Logger, Pycnometer, C:N Analyzer, and Freeze Dryer for use in Lake and Paleoclimate Studies at Middlebury College

MRI：购买多传感器岩心记录仪、比重瓶、C:N 分析仪和冷冻干燥机，用于米德尔伯里学院的湖泊和古气候研究

• 批准号: 0922940
• 负责人: Jeffrey Munroe
• 金额: $ 12.71万
• 依托单位: Middlebury College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0922940&HistoricalAwards=false
• 关键词: MRI; Acquisition; Multi; Sensor; Core

0922940MunroeFunds from this Major Research Instrumentation (MRI) grant will support the acquisition of equipment to for use in paleolimnology and paleoclimate studies in the Geology Department at Middlebury College, an undergraduate institution. Specific equipment to be acquired will include a Carbon/Nitrogen (CN) analyzer, a pycnometer, a freeze-dryer, and a coring system. The CN analyzer will be used to gauge the relative contribution of terrestrial and aquatic organic matter in lacustrine sediment samples, and to determine the makeup and extent of decomposition of organic matter in soils. The pycnometer will be used to make accurate bulk density determinations for vesicular sediment samples. The freeze-dryer will be used to prepare samples for carbon/nitrogen analysis, for biogenic silica and mineral phosphorous analysis using other currently available equipment, and for drying samples for stable archiving. The instruments will support the research and research training programs of three faculty members in the Department of Geology including studies of late Quaternary paleoclimate based on proxies recorded in lacustine and marine sedimentary archives and studies of climatic controls on soil development.

0922940Munroe 这项主要研究仪器 (MRI) 拨款的资金将支持购买设备，用于本科院校米德尔伯里学院地质系的古湖沼学和古气候研究。 将购买的具体设备包括碳/氮（CN）分析仪、比重瓶、冷冻干燥机和取芯系统。 CN分析仪将用于测量湖泊沉积物样品中陆地和水生有机质的相对贡献，并确定土壤中有机质的组成和分解程度。 比重瓶将用于准确测定囊状沉积物样品的堆积密度。该冷冻干燥机将用于制备碳/氮分析样品、使用其他现有设备进行生物二氧化硅和矿物磷分析，以及干燥样品以进行稳定存档。 这些仪器将支持地质系三名教员的研究和研究培训项目，包括基于湖泊和海洋沉积档案中记录的代理数据进行的晚第四纪古气候研究，以及气候对土壤发育控制的研究。